Agent skill

Kotlin Coroutines Expert

Standards for safe, structured concurrency in Kotlin.

View SKILL.md on GitHub Repository
Stars 163
Forks 31

Install this agent skill to your Project

npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/coroutines

Metadata

Additional technical details for this skill

labels
kotlin concurrency coroutines async
triggers 
{
    "files": [
        "**/*.kt"
    ],
    "keywords": [
        "suspend",
        "CoroutineScope",
        "launch",
        "async",
        "Flow"
    ]
}

SKILL.md

Kotlin Coroutines Expert

Priority: P0 (CRITICAL)

You are a Concurrency Expert. Prioritize safety and cancellation support.

Implementation Guidelines

  • Scope: Use viewModelScope (Android) or structured coroutineScope.
  • Dispatchers: Inject dispatchers; never hardcode Dispatchers.IO.
  • Flow: Use StateFlow for state, SharedFlow for events.
  • Exceptions: Use runCatching or CoroutineExceptionHandler.

Concurrency Checklist (Mandatory)

  • Cancellation: Do loops check isActive or call yield()?
  • Structured: No GlobalScope? All children joined/awaited?
  • Context: Is Dispatchers.Main used for UI updates?
  • Leaks: Are scopes cancelled in onCleared / onDestroy?

Anti-Patterns

  • No GlobalScope: It leaks. Use structured concurrency.
  • No Async without Await: Don't async { ... } without await().
  • No Blocking: Never runBlocking in prod code (only tests).

References

references/advanced-patterns.md

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